package com.example.zipkindashboard;

/**
 * @author zhangjiapeng
 * @Package com.example.zipkindashboard
 * @Description: ${todo}
 * @date 2018/11/22 16:24
 */
public class Ts22 {



    public static void main(String[] args) {
        StringBuilder sb = new StringBuilder();
        for (int i = 5; i < 7777; i= i+5) {
            sb.append(i);
        }
        String[] arr = sb.toString().split("5");
        int count = arr.length;
        System.out.println(count);
    }

}
